baber/WOPTO huggingface dataset:
Patent GB-271920-A (GB)
Title: Improvements in and relating to variable electric condensers
IPC: H01G5/12
Filed: 1926-01-27
Abstract: 271,920. Hesketh, B. Jan. 27, 1926. Condensers. - Variable condensers of the helical electrode type, particularly adapted to balancing oscillatory circuits, have the helices constructed so as to be of substantially circular cross-section. The minimum and maximum capacity are both low and variation is very gradual. In the form shown in Fig. 1, the insulating tube 1 is formed with two separate threads 2, 3, the thread 2 receiving a helical conductor 4 in frictional contact with the end cap 10 and the thread 3 receiving a worm 5 on a shaft 6 rotatable in an end cap 8. The outer surface of the worm approximates to a semicircle in cross-section. Rotation of the shaft causes the worm to move up or down the tube to vary the capacity, the latter, if desired. being indicated by graduations on the shaft. The end cap 10 may be formed with a screwed extension for mounting in a panel, or the two caps may be pointed for mounting in clips. Or the cap 10 may be threaded for attachment to, for example, a metal or insulating disc having fixing holes. The cap 8 may be a friction fit in, or may screw into, the tube 1. Instead of the worm 5, a helix similar to that 4 may be fixed to the shaft.. In another form, Fig. 3, two helices 14, 15 are used, the movable one being mounted on a shaft 16 having a quick pitch thread and working in the end cap 17. Fig. 6 shows a method of making connection between the shaft 6 and end cap, the method employing a tangential hole 28 in which is a springy wire 29, but in another form a radial hole and helical spring may be used.
Patent GB-213369-A (GB)
Title: Improvements in looms for the production of pile fabrics
IPC: D03D39/00
Filed: 1923-01-26
Abstract: 213,369. Spink, A., and Crabtree, D. Jan. 26, 1923. Pile-fabric looms; weft-inserters not carrying bobbins, cops, and the like, looms with.-The chenille or fur carrier 2 is operated by spring-actuated means simultaneously with the stopping of the loom. A lever secured to a stud b to which is attached a lever 8<a> is connected by a rod 11 to a crank or cam-controlled lever 12. The lever 8<a> is connected bv a rod to a similar lever 8 at the other side of the loom. Levers 5, 5<a> loose on the studs bare connected by adjustable springs 7, 7<a> and are adapted to be engaged by projections f, f<1> on the levers 8, 8<a> to tension the springs. Catches 17, 17<a> are adapted to be turned' by the projections f, f<1>, to cause them to engage pins g, g' on the levers 5, 5<a>, the catches being disengaged upon the return movement of the levers 8, 8a by adjustable screws h, h<1>. Upon the disengagement of a catch, the corresponding lever 5, or 5a is released and engages the outer end of the fur-carrier 2 to propel it along a guiding-rail 3. The carrier has antifriction rollers a.
Patent GB-434075-A (GB)
Title: Improvements in and relating to switch boxes for controlling electrically driven appliances
IPC: H02P1/54
Filed: 1935-01-24
Abstract: 434,075. Endless conveyers. SHEVLIN, J. T., 15, South Street, Finsbury, London.- (Siemens-Schuckertwerke Akt.-Ges. ; Siemensstadt, Berlin) Jan. 24, 1935, No. 2424. Drawings to Specification. [Class 78 (i)] [See also Group XXXVII] Main switches for electric driving-motors of feeder conveyers are opened automatically when the circuit of an electric motor driving a main conveyer is opened, and restarting of the motors driving the feeder conveyers is dependent on the closing of the main switch for the motor driving the main conveyer. Each conveyer motor is under the control of a similar switch-box including a change-over switch, the change-over switch for a switch-box controlling a conveyer motor being positioned to render the operation of the motor independent of that of the motors operating the feeder conveyers, while the change-over switches for switch-boxes controlling feeder conveyer motors are positioned to render the operation of such motors dependent on that of the main conveyer motor.
Patent GB-210970-A (GB)
Title: A new or improved machine for cutting-up wheat and other reaped grain
IPC: B02C18/14
Filed: 1923-01-27
Abstract: 210,970. Porteus, G. Jan. 27, 1923. Casing with internal revolving cutters. - A machine for cutting-up wheat and other grain comprises a rotary horizontal shaft provided with radial arms carrying at their outer ends adjustable and reversible cutters adapted to coact with cutters fixed upon the inner surface of a perforated cylinder into which the grain is fed and which is pivotally mounted and provided with adjusting means for rocking it from a position concentric with the shaft into a position eccentric thereto so as to adjust the distance between the cutters on its lower part and the rotary cutters. The perforated cylinder 7 with the cutters 6 is pivotally mounted at 8 between the end frames 9 and supported by an eccentrically-mounted shaft 10 that can be turned in its bearings 1 by means of a hand-lever 12. The cutters 5 are adjusted on the arms 4 on the shaft 3 and are each made reversible and formed with four cutting-edges. The grain is fed by a feed-hopper 16 and inlet 13, and the cut grain passes out of the cylinder by way of the outlet 14. The dust passes through the perforations of the cylinder into a shoot 17, the upper part of the cylinder being surrounded by a casing 18.
Patent GB-1064315-A (GB)
Title: Halogen-containing derivatives of 6-chromanol
IPC: C07F9/655
Filed: 1964-03-16
Abstract: 1,064,315. 5-Halomethyl derivatives of 6- chromanyl acylates; derivatives of Vitamins E and K1. MERCK & CO. Inc. March 16, 1964 [March 19, 1963], No. 2506/66. Divided out of 1,064,311. Headings C2C and C2V. Novel 5-halomethyl 6-chromanyl acylates (II) are obtained by reacting the appropriate γ-hydroxy derivative of 1 : 4-quinones (I) with an alkanoyl halide, e.g. acetyl chloride, propionyl bromide or propionyl chloride, according to the equation wherein X is chlorine or bromine, Y is C 1-5  alkyl, Z is -CH = CH-CH = CH- or two methoxy or methyl groups, and R is -CH 3  or where n is an integer from 1 to 9. The reaction may be carried out at room temperature and in the absence of a solvent. Specified 1 : 4- quinones used are derivatives of Vitamin K1 (III), a compound of the coenzyme Q series (IV) and a Vitamin E derivative V having the formulµ The 5-halomethyl 6-chromanyl acylates may be converted into the corresponding 5-acetoxymethyl-6-chromanyl acylates by reaction with silver acetate, optionally in the presence of acetic acid.
Patent GB-1116111-A (GB)
Title: Electric-discharge apparatus
IPC: H05B41/32
Filed: 1966-01-19
Abstract: 1,116,111. Control systems for discharge lamps. GENERAL RADIO CO. 19 Jan., 1966 [28 Jan., 1965], No. 2508/66. Heading H2H. A control system for intermittently energizing a discharge tube FT so as to produce flashes of light comprises a capacitor C which is charged from a D.C. source E which capacitor is then discharged through the tube FT when a triggering pulse is applied thereto by the trigger 2. Simultaneously with the pulse to the tube FT the trigger 2 applies a signal to a pulser 4 which then applies a pulse to the base of a transistor S to render it conductive whereupon current flows in the primary winding Lp of a transformer T which current increases in a linear manner. The voltage induced in the secondary winding Ls of the transformer does not cause charging of the capacitor C due to the presence of a diode D. Termination of the pulse from the pulser 4 renders the transistor S non- conductive, the collapse of flux in the core of the transformer T then producing a voltage which charges the capacitor. The following pulses from the trigger 2, and hence the pulser 4, cause a flash of light from the tube FT by the discharge of the capacitor C therethrough and a build-up once more of current in the primary winding Lp. The duration of the pulses applied to the base of the transistor must be longer than the de-ionization time of the tube FT. The frequency of flashing of the tube may be varied by changes in the value of the capacitor. In a further embodiment the pulses applied to the base of the transistor S are supplied by a monostable vibrator, the capacitor then being charged in an incremental manner and the voltage to which the capacitor is charged is determined by a Zener diode which controls the monostable vibrator by way of a bi-stable circuit and a gating device. The time during which the capacitor is charged is determined by a delay circuit.
Patent GB-563572-A (GB)
Title: Improvements in hair nets and the like
IPC: A45D8/40
Filed: 1943-02-16
Abstract: 563,572. Hair nets; caps. SMITH, W. P., and SMITH, G. H. Feb. 16, 1943, No. 2521. [Class 63] [Also in Group XIV] Hair nets including slumber and sports caps comprise a mesh fabric having along each edge two textile threads 11, 12 threaded through the edge and the threads being secured to the mesh at opposite ends. As shown in Fig. 1, the hair mesh is produced on a lace machine with clothing or pillaring 10 at intervals and the threads 11, 12 turned inwards at such pillaring. One end of the thread 11 is secured to the pillaring 10 at 11b and the thread 12 at the adjacent pillaring at 12a, the other ends 11a, 12b of the respective threads being free. Separate hair nets are produced by cutting along the medial transverse plane of the pillarings and by drawing on the free ends of the threads 11, 12 a cap-shaped article is produced as shown in Fig. 3. The free ends 11a, 12b may be tied together and shortened, or tied under the chin or along the forehead of the wearer.
Patent GB-656230-A (GB)
Title: Improvements in and relating to scoring apparatus for games
IPC: A63D15/20
Filed: 1949-08-06
Abstract: 656,230. Games scoring apparatus. KNAPTON, J. W. Aug. 6, 1949, No. 2554. [Class 132 (ii)] Game scoring apparatus comprising a casing 4 containing for each player a set of three endless bands 11 on rollers 7 tensioned by springs 10, each band being marked with the numerals 0 to 9 three times, a cross bar 12 being secured to the band beneath each numeral so as to be operable to move the band through slots 15 in the front 13a of the casing, is characterized by the provision of widened parts 16 of the slots 15 which reveal the bars 12 of the adjacent band to allow of its being manipulated in carrying over units or tens. The score appears in apertures 14 and the numerals 1 to 9 are printed on the front 13a. To facilitate addition and subtraction there may be removably attached to the front 13a a plate bearing on its front the numbers 1 to 9 and, on its back, these numbers in reverse order. A plate 13 may lie behind the front run of the bands 11.
Patent GB-979521-A (GB)
Title: Process of purifying phenanthrene
IPC: C07C7/163
Filed: 1961-01-23
Abstract: Phenanthrene is purified by treatment with hydrogen at elevated temperature and pressure in the presence of a hydrofining or autofining catalyst and recovering purified phenanthrene from the product.  Preferred catalysts contain cobalt and molybdenum oxides on alumina but compounds of other transition metals of Group II, VI or VIII may be used, e.g. zinc and molybdenum on alumina. Suitable conditions are 350-450 DEG  C. and 5-70 atmospheres with 1-5 parts by volume of catalyst per part of phenanthrene.  The starting material is preferably concentrated by distillation and the product fractionated and recrystallized from ethyl alcohol. Specification 769,293 is referred to.
Patent GB-304479-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/26
Filed: 1928-01-27
Abstract: 304,479. British Thomson-Houston Co., Ltd., and Collingham, R. H. Jan. 27, 1928. Casings. - In order to prevent "creeping " the casing of a turbine operating with elastic fluid at a very high temperature is made in two portions A, B, the portion B which is subjected to the very high temperature being under no tensile stress, but under compression stresses of negligible or low value only. This is achieved by circulating in the space between the casings A, B, fluid of the same pressure as, but of lower temperature than, that supplied by the nozzles N to the turbine in the casing B. The joint J, H between the casings is made tight, but a slight clearance is left in the joint C to allow heating fluid to leak away. The heating chamber is supplied through a connection E, and the turbine is separately supplied with superheating fluid to leak away. The heating from swivelling couplings G joined to supply pipes F. The internal casing B is lagged at O with non-conducting material.
Patent GB-1023704-A (GB)
Title: Oxymethylphosphinic acids and salts thereof
IPC: C07F9/38
Filed: 1963-01-22
Abstract: Phosphinic acid derivatives of formula <FORM:1023704/C4-C5/1> where R is alkyl, aryl, alkryl or aralkyl and may have one or more hydroxy or chloro substituents, and M is hydrogen or an alkali metal are stated to be useful as antioxidants for petroleum products.ALSO:Ethanolic solutions of phenoxymethylphosphinic acid, p-t-butylphenoxymethylphosphinic acid, p-t-butylphenoxymethylphosphonic acid or butoxymethylphosphinic acid are used to treat steel against corrosion.ALSO:The invention comprises oxymethylphosphinic acids and salts of formula <FORM:1023704/C2/1> where R is alkyl, aryl, alkaryl or aralkyl and may contain one or more hydroxy or chloro substituents, and M is hydrogen or alkali metal. They may be prepared by reacting an alkali metal salt of chloromethylphosphinic acid with ROM and, if desired, liberating the free acids with HCl.  Phenoxymethylphosphonic acid and p-t.-butyl-phenoxymethylphosphoni acid are prepared by oxidizing the corresponding phosphinic acids with HgCl2.
Patent GB-620891-A (GB)
Title: Automatic packaging machine
IPC: B65B9/02
Filed: 1947-01-29
Abstract: 620,891. Packaging-machines. TRANSPARENT-WRAP MACHINE CORPORATION. Jan. 29, 1947, No. 2792. Convention date, May 13, 1943. [Class 94(i)] A packaging-machine comprises a tube former of oblong transverse section, means for guiding opposed ribbons of packaging material into contact with the tube former across its entire width with the edges of the packaging material extending beyond the tube former and means for sealing the marginal portions. As shown, ribbons of material from spools 25 and 26 are passed between hour-glass-shaped rolls 51 and 52 and the sides of an oblong former comprising a tube 42 and plates 46, the marginal portions of the material being pressed together by straight sections 52a of the rollers and the edges kept in position by flanges 53 on one of the rollers. The material then passes to a position H where the marginal portions are sealed to form a tube, then to a position J where a transverse seal is made forming the top of one package and the bottom of the next and where the filling is introduced through the tube 42 which is shorter than the plates 46, the air displaced together with any fine particles of the filling material passing up the space 48. The marginal sealed portions are subjected to a blast of air from tubes 99 and the transverse seal from a pair of fish tail nozzles 101 before proceeding to a position K where the transverse seal is cut to produce individual packages. The marginal sealing devices are opened and closed by a shoulder cam acting against springs, Fig. 3 (not shown), and the transverse sealing device also acts as a mechanism for pulling the tube through the machine. One or more series of stations may be employed on one machine operated by one prime mover. Specification 440,328 is referred to.
Patent GB-725158-A (GB)
Title: A mask device for use during shaving
IPC: A45D24/36
Filed: 1953-02-02
Abstract: 725,158. Shaving accessories. MONK, A., and BELL, H. W. Jan. 29, 1954 [Feb. 2, 1953], No. 2919/53. Class 131. A device for limiting the area to be shaved comprises a pair of limbs 1 having free ends 3 fitting the head above the ears and connected together at the other ends to form a handle 2, a guide 5 being carried or formed by each limb and covering an area of the upper cheek. Slots 6, 7 allow the guides to be adjusted vertically and horizontally and rotated on the nuts 8 to bring into operation a bevelled edge 9, when a safety or open razor is used, and a blunt edge 10, when a dry shaver is used. The limbs may be cranked or hinged and jointed for packing.
Patent GB-983988-A (GB)
Title: Machine and method for moulding heat-curable articles
IPC: B29C43/08
Filed: 1961-08-14
Abstract: 983,988. Moulding thermoplastic grommets. DUNLOP RUBBER CO. Ltd. Aug. 14, 1961 [Aug. 15, 1960], No. 29221/61. Heading B5A. Thermoplastic grommets are moulded by using the method and apparatus as described in Specifications 789,965, 789,966 and 798,967, but a multipart die is used so that the articles can be discharged while in a semi-cured condition without distorting them. The grommets are formed by moving a die member 25 to the right, forcing the material into cavities 50, 52 and allowing excess material to flow out through passages 59, 60. The die member 25 is then moved away and a rod 43 pushed to the left, allowing a spring 63 to open the die parts 38, 39 to permit the article to fall out. To facilitate the removal, compressed air can be admitted through passages 66. A die member with three relatively movable die parts is described (see Fig. 7, not shown).
Patent GB-691144-A (GB)
Title: Inlet control device for radial flow turbine wheels
IPC: F01D17/14
Filed: 1951-02-06
Abstract: 691,144. Turbines; centrifugal blowers. BœCHI, A. Feb. 6, 1951 [Feb. 16, 1950], No. 2941/51. Classes 110(i) and 110(iii) [Also in Group XXVII] The supply of working fluid to a radial flow turbine is controlled by two guide devices at least one of which is slidable in the direction of the turbine axis and which comprises a set of guide vanes movable, at least partially, into or out of the motive fluid ahead of the turbine. In the arrangement shown, Fig. 1, the control comprises an outer set of guide vanes 5 which are fixed to the casing 2 and an inner set of vanes 6 which are attached to an axially' slidable sleeve 4. The sleeve 4 is actuated by movements of a piston 16 through a link 20, crank 11 and cam 14. The movements of the piston 16 may be controlled by the pressure in the cylinder 17 which may be the pressure in the discharge of the blower 23 driven by the turbine 1, the pressure in the working fluid supply chest 25 or in a stage of the turbine. The vanes 6 may be formed as straight wall-surfaces forming a wedge-shaped cross-section with the thicker portion on the inlet side. The turbine shown has two supply ducts 30, 31, Fig. 5, and these ducts are maintained separate up to the stationary guide blades by means of partitions 34, 35. If desired there may be more movable guide vanes 6a than fixed guide vanes 5. Each outlet end of a guide vane 5 fits upon the entrance end of each second guide vane 6a so as to ensure continuous guiding of the gas stream. In the arrangement shown, the vanes 6a which do not abut against the exit edge of a guide vane 5 may project into the intermediate space between the vanes 5. The vanes 6a are thin and of the same thickness throughout. A modification, in which the turbine has four supply ducts and the axially slidable sleeve 4 is operated by a spring-loaded lever so that the movable guide vanes are either in the gas stream or completely withdrawn from it, is described. In this modification the vanes 5 do not abut against the edges of vanes 6 but project into the intermediate spaces between them. In a further modification, the slidable sleeve 4 is operated by hand. In this arrangement, alternate vanes 6 are made radially shorter and the vanes 5 are arranged to abut against the shorter vanes. In another modification, both sets of guide vanes are arranged to be axially slidable. These sets of guide vanes may be operated by independent levers or may be attached to a single lever so that when one set of guide vanes is withdrawn from the gas stream, the other set may be inserted in it. In this arrangement the two sets of guide vanes may be interdigitated. Means for guiding the vanes and preventing leakage of the motive fluid are described. Arrangements in which the slidable sleeve 4 is operated by a speed governor driven by the turbine and, when the turbine forms part of an exhaust gas turbine driven supercharger for an internal combustion engine, by the governor of the internal combustion engine are also described.
Patent GB-772377-A (GB)
Title: Improvements in or relating to mineral-cutting apparatus
IPC: E21C27/02
Filed: 1955-02-01
Abstract: 772,377. Mineral-mining apparatus. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI GEB. Feb. 1, 1955 [March 6, 1954], No. 2942/55. Class 68 (1). Apparatus for cutting mineral during a traverse in either direction of a longwall face comprises two similar drum type cutter machines 2, 3 disposed one behind the other and coupled together so as to move in unison, at least one of the machines being so mounted on a skid structure 9 that it may be rocked about a pivotal connection 15 between the machine and the skid frame to vary the cutting height of the associated drum cutter. The cutting diameters of the contra-rotating cutter drums of the two machines are approximately equal to the overall height of each machine. A transverse conveyer 12 is disposed between the machines.
Patent GB-551779-A (GB)
Title: Improvements in and relating to micrometer-calliper gauges
IPC: G01B3/18
Filed: 1942-03-07
Abstract: 551,779. Micrometer screw gauges. COYNE, E. March 7, 1942, No. 3002. [Class. 106 (ii)] A gauge of the usual bow type is provided with an L-shaped extension 1c the longer limb of the extension being parallel to the gauge spindle 4 which itself is extended at 4a to pass through the shorter limb of the extension and to form therewith a depth gauge. The usual barrel and thimble scales 3a, 2a serve for depths as well as width of gap in the calliper gauge.
Patent GB-161017-A (GB)
Title: Improvements in handlebars for cycles, motor-cycles and the like
IPC: B62K21/16
Filed: 1920-02-02
Abstract: 161,017. Murray, F. G. Feb. 2, 1920. Handle-bars.-In order to render the handlebars of motor-cycles &c. laterally adjustable, they are constructed in two parts 2 which can be simultaneously adjusted within sockets 3 at the upper end of the stem by the rotation of a nut or collar 5 upon a rotatable right and left hand screw-threaded rod or tube 4 engaging with the correspondingly internally screw-threaded inner ends 2a of the bar parts 2. A key and straight-slot connection may be provided between the sockets and the handle-bar parts; or, as shown, in order to vary the drop or elevation of the bars as they are adjusted laterally, a key or feather and helical-slot connections 3<a> may be employed. Removable covering-sleeves 7 retained in position by nuts 8 may be used, and when, as shown, the slots 3<a> are open-ended and the screw-threaded ends of the sockets 3 slightly tapered, the nuts 8 serve to retain the bar parts in position after adjustment. The grips may be hinged to the outer ends of the parts 2, and a friction or ratchet device may be used to lock the grips in any position to which they may be set. According to the Provisional Specification, to prevent or control relation of the parts 2 within the sockets, the sockets carry one or more screws engaging with straight or inclined slots in the parts.